Mexico, long known for silver, is enjoying a new gold rush, as high gold prices compel companies...

Mexico, long known for silver, is enjoying a new gold rush, as high gold prices compel companies to start mining more aggressively in the country's difficult terrain. Big outfits such as Goldcorp (GG) are operating in areas where gold wasn't concentrated enough for mines to make a profit. This year, GG's Peñasquito site is set to produce 500K oz. of gold, making it Mexico's biggest gold mine and GG's most prolific.